1. Clinic of Orthopaedics and Sportsorthopaedics, Klinikum rechts der Isar; Technische Universitaet Muenchen; Munich Germany
2. Clinic of Trauma Surgery, Klinikum rechts der Isar; Technische Universitaet Muenchen; Munich Germany
3. Institute of Clinical Radiology; Ludwig-Maximilians-Universitaet Muenchen; Munich Germany
4. Department of Orthopedics; Munich University Hospital - Campus Großhadern, Ludwig- Maximilians Universitaet; Munich Germany